NavigationDestination: key property
Baseline
2026
Newly available
Since January 2026, this feature works across the latest devices and browser versions. This feature might not work in older devices or browsers.
The key read-only property of the
NavigationDestination interface returns the key value of the destination NavigationHistoryEntry if the NavigateEvent.navigationType is traverse, or an empty string otherwise.
The key is a unique, UA-generated value that represents the history entry's slot in the history entries list, used to navigate to this place in the history via Navigation.traverseTo(). It will be reused by other entries that replace the entry in the list (i.e., if the NavigateEvent.navigationType is replace).
Value
A string representing the key of the destination NavigationHistoryEntry, or an empty string.
Examples
navigation.addEventListener("navigate", (event) => {
console.log(event.destination.key);
});
Specifications
| Specification |
|---|
| HTML # the-navigationdestination-interface:dom-navigationdestination-key-2 |